# the heat required to change 1 gram of a solid at its normal melting point

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## What is called latent heat?

latent heat, energy absorbed or released by a substance during a change in its physical state (phase) that occurs without changing its temperature.

## What is the heat called when a substance melts?

It requires energy for a solid to melt into a liquid. Every pure substance has a certain amount of energy it needs to change from a solid to a liquid. This amount is called the enthalpy of fusion (or heat of fusion) of the substance, represented as ΔHfus.

## What is the energy absorbed during melting called?

latent heat, energy absorbed or released by a substance during a change in its physical state (phase) that occurs without changing its temperature.

## Why it is called latent heat?

Latent heat, also called heat of transformation, is the heat given up or absorbed by a unit mass of a substance as it changes from a solid to a liquid, from a liquid to a gas, or the reverse of either of these changes. It is called latent because it is not associated with a change in temperature.

## What is the heat absorbed when 1 gram of solid melts is called as?

The latent heat associated with melting a solid or freezing a liquid is called the heat of fusionheat of fusionThe enthalpy of fusion of a substance, also known as (latent) heat of fusion, is the change in its enthalpy resulting from providing energy, typically heat, to a specific quantity of the substance to change its state from a solid to a liquid, at constant pressure.https://en.wikipedia.org › wiki › Enthalpy_of_fusionEnthalpy of fusion – Wikipedia; that associated with vaporizing a liquid or a solid or condensing a vapour is called the heat of vaporization.

## What is the term for heat energy required to change 1 kg of a solid into a liquid as its melting point?

This heat energy is known as latent heat energy (symbol ' '). The amount of heat energy required to change the state of 1 kg of a substance at its melting point is called the specific latent heat of the substance.

## What is the energy required to convert 1 kg of a solid substance into liquid state at one atmospheric pressure is known as?

The amount of energy required to change the state of 1 kg of a material is known as specific latent heat. Hence the amount of heat needed to turn 1 Kg of solid into liquid at atmospheric pressure at its melting point is known as specific latent heat of fusionlatent heat of fusionThe enthalpy of fusion of a substance, also known as (latent) heat of fusion, is the change in its enthalpy resulting from providing energy, typically heat, to a specific quantity of the substance to change its state from a solid to a liquid, at constant pressure.https://en.wikipedia.org › wiki › Enthalpy_of_fusionEnthalpy of fusion – Wikipedia.

## What is the term for the heat required to convert a solid to liquid at its melting point?

It requires energy for a solid to melt into a liquid. Every pure substance has a certain amount of energy it needs to change from a solid to a liquid. This amount is called the enthalpy of fusion (or heat of fusion) of the substance, represented as ΔHfus.

## What is the term for heat energy required to change 1 kg of a solid into a liquid at its melting point?

This heat energy is known as latent heat energy (symbol ' '). The amount of heat energy required to change the state of 1 kg of a substance at its melting point is called the specific latent heat of the substance.

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## What is the energy needed to melt a solid called?

<br> ( R) : Latent heat is the heat required to melt a certain mass of solid. वक्तव्य। ठोस के पिघलने पर इसकी आन्तरिक ऊर्जा घटती है।Jun 27, 2022

## Is the amount of energy required to melt 1 mole of a solid?

The amount of heat energy required to melt one mole of a solid at its melting point. The molar heat of fusionheat of fusionThe enthalpy of fusion of a substance, also known as (latent) heat of fusion, is the change in its enthalpy resulting from providing energy, typically heat, to a specific quantity of the substance to change its state from a solid to a liquid, at constant pressure.https://en.wikipedia.org › wiki › Enthalpy_of_fusionEnthalpy of fusion – Wikipedia of water is 6.02 kJ/mole.

## Is more energy required to melt one gram?

The energy required for 1 gram of the substance to melt is 334 J/g. To boil one gram of water at 100°C, the energy required is 2259 J/g. Thus, boiling water requires more energy because of the hydrogen bonds that are hard to break compared to ice.

## What is the amount of energy in Joules needed melt 1 gram of a solid called?

This energy is termed latent heat since it does not result in a change in the temperature of the water molecules – thermometers cannot measure this energy. A total of 334 J of energy are required to melt 1 g of ice at 0°C, which is called the latent heat of meltinglatent heat of meltingThe enthalpy of fusion of a substance, also known as (latent) heat of fusion, is the change in its enthalpy resulting from providing energy, typically heat, to a specific quantity of the substance to change its state from a solid to a liquid, at constant pressure.https://en.wikipedia.org › wiki › Enthalpy_of_fusionEnthalpy of fusion – Wikipedia.

## How much heat does it take for the water liquid water to change temperature from 0 C to 100 C?

It takes 100 calories to heat 1 g. water from 0˚, the freezing point of water, to 100˚ C, the boiling point. However, 540 calories of energy are required to convert that 1 g of water at 100˚ C to 1 g of water vapor at 100˚ C. This is called the latent heat of vaporization.

## How do you calculate heat released per gram?

To calculate the amount of heat released in a chemical reaction, use the equation Q = mc ΔT, where Q is the heat energy transferred (in joules), m is the mass of the liquid being heated (in kilograms), c is the specific heat capacityspecific heat capacityThe SI unit of specific heat capacity is joule per kelvin per kilogram, J⋅kg−1⋅K−1. For example, the heat required to raise the temperature of 1 kg of water by 1 K is 4184 joules, so the specific heat capacity of water is 4184 J⋅kg−1⋅K−1.https://en.wikipedia.org › wiki › Specific_heat_capacitySpecific heat capacity – Wikipedia of the liquid (joule per kilogram degrees Celsius), and ΔT is the change in …Feb 12, 2020

## How much heat must be absorbed by 25 g of ice at 0 0c to change it to water without a change in temperature?

Answer: The amount of heat required to melt 25 grams of ice is 8,350 Joules or 2,000 calories. Note: Heat of fusionHeat of fusionThe enthalpy of fusion of a substance, also known as (latent) heat of fusion, is the change in its enthalpy resulting from providing energy, typically heat, to a specific quantity of the substance to change its state from a solid to a liquid, at constant pressure.https://en.wikipedia.org › wiki › Enthalpy_of_fusionEnthalpy of fusion – Wikipedia should be a positive value. (The exception is helium.) If you get a negative number, check your math.Nov 9, 2019

## What is the boiling point when one gram of liquid water?

For water at its normal boiling point of 100 ºC, the heat of vaporization is 2260 J g-1. This means that to convert 1 g of water at 100 ºC to 1 g of steam at 100 ºC, 2260 J of heat must be absorbed by the water.

## What is the amount of heat released by 1.00 grams of liquid water at 0?

This means that to convert 1 g of ice at 0 ºC to 1 g of water at 0 ºC, 334 J of heat must be absorbed by the water. Conversely, when 1 g of water at 0 ºC freezes to give 1 g of ice at 0 ºC, 334 J of heat will be released to the surroundings.

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which statement best describes the molecules of h2o in the solid phase

exhibits the highest intermolecular forces of the states of matter

when a substance melts it undergoes a process known as

which change results in a release of energy

describes the process by which a gas goes directly to the solid phase

which energy transfer occurs when ice cubes are placed in water that has a temperature of 45°c

heat of fusion expressed in unit of?

specific heat of water j/g c

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